NVIDIA GeForce GTX 460M vs NVIDIA GeForce GT 645M

VS

NVIDIA GeForce GTX 460M

NVIDIA GeForce GT 645M

We compared two Mobile platform GPUs: 1536MB VRAM GeForce GTX 460M and 2GB VRAM GeForce GT 645M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 460M 's Advantages

Larger VRAM bandwidth (60.00GB/s vs 28.80GB/s)

NVIDIA GeForce GT 645M 's Advantages

Released 2 years and 1 months late

More VRAM (2GB vs 1536GB)

192 additional rendering cores

Lower TDP (32W vs 50W)

Score

Benchmark

FP32 (float)

GeForce GTX 460M

0.518 TFLOPS

GeForce GT 645M +5%

0.544 TFLOPS

GeForce GTX 460M

VS

GeForce GT 645M

Graphics Card

Sep 2010

Release Date

Oct 2012

GeForce 400M

Generation

GeForce 600M

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

625 MHz

Memory Clock

900 MHz

Memory

1536MB

Memory Size

2GB

GDDR5

Memory Type

DDR3

192bit

Memory Bus

128bit

60.00GB/s

Bandwidth

28.80GB/s

Render Config

-

4

SM Count

-

192

Shading Units

384

32

TMUs

32

24

ROPs

16

-

64 KB (per SM)

L1 Cache

16 KB (per SMX)

384 KB

L2 Cache

256 KB

-

Theoretical Performance

5.400 GPixel/s

Pixel Rate

5.672 GPixel/s

21.60 GTexel/s

Texture Rate

22.69 GTexel/s

-

518.4 GFLOPS

FP32 (float)

544.5 GFLOPS

43.20 GFLOPS

FP64 (double)

22.69 GFLOPS

Board Design

50W

TDP

32W

-

No outputs

Outputs

No outputs

-

Graphics Processor

GF106

GPU Name

GK107

N11E-GS-A1

GPU Variant

N13P-GS

Fermi

Architecture

Kepler

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.17 billion

Transistors

1.27 billion

238 mm²

Die Size

118 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.1

OpenCL

3.0

N/A

Vulkan

1.1

2.1

CUDA

3.0

5.1

Shader Model

5.1

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